Bedstead.



H. AGKERMANN.

BBDSTEAD.

APPLIOATION FILED APR. 14, .1911.

1,016,868; Patented Feb.6,1912.

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BBDSTEAD. y vAPPLICATION FILED APB.. 14, 1911.`

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APPLICATION FILED APB..14. 1911.

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H. AGKERMANN.

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APPLICATION FILED APR. 14, 1911. 1O16,868,i v Patented Feb. 6, 1912.

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HEINRICH ACKERMANN, OF BERLIN, GERMANY.

BEDSTEAD.

Patented Feb. 6, 1912.

serial No. 621,038.

To all whom t may concern.'

Be it known that I, HEINRICH Aorinn- MANN, a subject of the King of Prussia, and resident of 43/44 Warschauerstrasse, Berlin, German Empire, have invented certain new and useful lmprovements in Bedsteads, of which the following is a specification.

This invention relates to certain improvements in bedsteads and particularly of the type intended for use by invalids and the object of the present invention is to provide an adjustable support for the upper part of the invalids body and a bed-table which can be adjusted in the desired position if desired by the patient.

My invention also comprises means whereby the bedstead may be used as an operating table when required.

Adjustable supports for the upper part of the invalids body are already well known but my invention relates more particularly to adjustable supports which are so constructed as to always move parallel to the patient when raising or lowering` the same. Heretofore such adjustable supports have been usually constructed so as to turn about a fixed pivot but the fixed pivot cannot coincide with the hip joint of the patient so that when raising the adjustable support from the horizontal position to the vertical position, the distance between the back of the patient and said adjustable support is decreased and the patient is thus moved toward the foot of the bed until the space between the patients back and the adjustable support is the same as it was when in the horizontal position.

My invention has therefore for its object to provide an adjustable support for the end section of an invalid bed, the axis of rotation of which is located in space and above the bed, the adjustable support being, for this purpose, carried at each side by a pair of links pivoted at one end to the adjustable support and at the other end to the bed bottom frame. By this means the adjustable support is always caused to move parallelly to the patients body and the same distance therefrom, thus preventing` undesirable movement of the patient toward the foot of the bed.

My invention also comprises means where by the patient or attendant may operate and adjust both the table and adjustable support simultaneously, for this purpose the adjustable support and table being connected to-4 gether by means of suitable lever connections, as will be hereinafter more fully set forth.

In order that my invention may be more clearly understood reference is made to the accompanying drawings .which show by way of example different methods of carrying out the invention.

Figure 1 is a side view of the bedstead showing the support in its lower position andthe table closed up so as to form a part of the foot board. Fig. 2 is a similar view to Fig. 1 but showing the support in its raised position and the table being shown opened out and in dotted lines in inclined position, and the lower part of the foot board being shown in the position it may assume when it is intended to use the bedstead as an operating table. Fig. 3 is a transverse section through the bedsteadl on the line A-B of Fig. 1. Fig. 4 is a plan view of the bedstead in the position shown in Fig. 2 but showing the support in its lower position. Fig. 5 is a longitudinal section through the spring mattress and support. Fig. 6 is a side view of a modification of the bedstead shown in Fig. 1, Fig. 7 is a detail view in section on the line A-B of Fig. 9, Fig. 8 is a side view of the push-rod 21 hereinafter referred to, Fig. 9 is a detail side view showing the connection between the arm 5 and push-rod 28, hereinafter referred to.

Referring to Figs. 1-5 of the drawings: the frame a which forms the frame for the adjustable support for the back of the patient is provided with springs so as to form a resilient supporting surface and extends at its lower end below the frame of the spring mattress o which is stretched within a frame e. The springs b and c are adapted to fit between and cross one another so that where the springs cross a perfectly resilient support is provided. The frame a is carried at each side by means of short links d pivoted at Z3 to the mattress frame e, and at (Z4 to the adjustable support or frame a while the frame a is further supported by means of comparatively long links f pivoted at f2 to the head of the bedstead and at f to the frame a, the links f being provided at their free ends with handles for operatingv the same, and being adapted to be held in position (by means of a spring within one or other of a series of hooks or catches m carried by a strut m.

The movement of the arm d about its pivot als is limited by means of stops d and cl2, and as the frame a is connected to the arms el, the frame is therefore also limited in its movement. The patient can, if he desires, adjust the support or frame a` by gripping the handles of the links f and raising the same out of engagement with the catch m, after which by drawing the handles toward one another, the links f may be curved outwardly and thereby enabled to pass over the catches m', engaging therewith immediately on the handles of the links f being released. It will thus be seen that the adjustable support or frame a is carried at each side by a pair of links y and l pivoted thereto and is therefore capable of a turning movement about the axial lines of the fixed pivots f2 and d3 respectively, which turning movement is analogous to or may be resolved into a rotary movement about an vaxis of rotation located in space above the bedstead frame or mattress o.

Adapted to form part of the foot board is a table z', which is carried by supports h pivoted to the bedstead frame, and to the said arms 71. are pivoted draw bars L adapted to be operated by the patient. Pivoted to the table z' is also a pair of legs n adapted to engage recesses 0 in the frame c and adapted when the table is closed to fit within the bed posts p. It will thus be seen that on pulling the draw bars 7L from the position shown in Fig. 1 to that shown in Fig. 2, the table z' is drawn forward and the legs n can then be stationed at any desired angle by engaging the same in the recesses 0 in the bedstead frame. In Fig. 2 the position of the table is shown in inclined posit-ion in dotted lines.

The lower part ofthe foot board of the bedstead is pivoted. so as to turn outwardly and when turned into this position it is secured by chains or the like.

Referring to Figs. 6-9 of the drawings, in which a modification of my invention is shown wherein the back support and table are connected together so as to be capable of operation and adjustment simultaneously the bedstead comprises a mattress frame 1, a head board 2 and a foot board 3 of usual construction. Carried by the mattress frame 3 is a support 4 constructed substantially as described with reference to Fig. 1 of the drawings, this support 4 being carried by means of links 5 and 6, the link 5 being pivoted to the mattress frame at 7 and to the support vat 8, and the link 6 being pivoted to the mattress frame at 9 and to the support at 10. The link 6 is extended beyond the support 4 and terminates in a handle 11, the link 6 .carrying bearings 12 and 13 within which is slidably mounted a spindle 14 terminating in proximity to the handle 11 in a handle 15 and terminating at its other end in a nose 19 engaging a toothed rack 20 carried by the bedstead frame. The nose 19 of the spindle 14 is maintained in engagement with the rack 20 by means of a spring 16 surrounding the spindle 14 and bearing at one end against the bearing 13 and at the other end against a stop 18 on the spindle 14. The movement of the spindle 14 over the toothed rack 20 is guided by means of a prolongation 21 or by means of a forked end on the spindle 14.

The table-22 is carried by side supports 23 hinged at 24 to the mattress frame 1, the table 22 being t-hus adapted to fold up and form part of the foot board 3 as shown in dotted lines at Fig. 6. Pivoted at 26 to the table 22 are a pair of side legs 25 adapted to engage in sockets 27 on the mattress frame 1. Articulated to the supports 23 at 29 are push rods 28 each connected at 30 to an extension of the link 5, so that by this means the support 4 and table 22 are connected together.

31 is a handle fixed on the push rod 28 and by which the latter may be manipulated.

The connection 30 is shown in enlarged View in Figs. 7-9 and it comprises a bolt 32 passing through the link 5 and having an enlarged cylindrical part 33 and a reduced end part 37 upon which is loosely mounted the eye 34 of a locking bolt 35, said locking bolt being held in place by means of an enlarged head 37 on the bolt 32. The push rod 28 is provided with a key hole slot 39, the enlarged circular part 40 of the same corresponding to the diameter of the enlarged part 33 on the bolt 32 and the eye 34 of the locking bolt 35, while the slotted part of the slot 39 corresponds tothe thickness of the part 36 of the locking bolt 35, said part 36 being of course of smaller thickness than the diameter of the eye 34. A

l/Vhen it is desired to use the table 22, the head and back of the patient must be raised and supported by the support and this may be effected simultaneously by the construction shown in Figs. 6 9. When the table is notin use the same is adapt-ed to fold back and form part of the foot board, while at the same time the support is lowered into its lower position. It will of course be understood that the links and lever operating mechanism are arranged on both sides of the bedstead.

To transpose the support and table from the position shown in full lines at Fig. 6 to that shown in dotted lines thereon, the patient or attendant grips the handles 11-15 thereby sliding the spindle 14 against the action of its spring 16 until the nose 19 is out'of engagement with the teeth of the rack 20, when the support will fall by its own weight and without' assistance into the dotted position shown. As the support 4 lowers, the link thereof pushes the rod 29 toward the foot of the bedstead, thus swinging the table 22 about the pivot 23, until the table takes up its position of rest as part of the foot board 3, the legs 25 of the table fitting in suitable recesses in the foot board 3. It will thus be seen that the table can be readily removed and the support lowered into the dotted position shown, so that all the links and levers lie close to the mattress frame l and do not project above the mattress so that free access is given to the bed. To transpose the parts from the dotted position into the position shown in full lines in Fig. 6, the link 6 is lifted by the patient or attendant by gripping the handles 11-15 and after releasing the handles the nose 19 automatically engages in the rack 20 and the parts are thereby secured in position, the patient or attendant lifting the legs of the table 22 into the sockets 27.

In order that the support and table may be independently adjustable, the connection between the link 5 and rod 28 is detachable, this being eected by turning the locking bolt from the position maintained by gravity and shown at Figs. 7-9 to the horizontal position shown in dotted lines in Fig. 8, so as to be in line with the key hole slot 39 after which the rod 28 can be slid over the locking bolt 35 and the table 22 operated, when desired, by the patient by means of suitable hand grips 31 provided on the rods 28.

I claim:

l. In combination with a bed bottom, of

I an adjustable support for the end section, a

pair of links of unequal length at each side of said support, each of said links being pivoted to said support and at fixed points to the bedstead frame so that said support is capable of turning about the two center lines of the fixed pivots of said links with said bedstead frame, said turning movement being analogous to or capable of being resolved into a rotary movement about an aXis of rotation located in space above said bedstead frame and mattress, the longer of said links being extended to form an operating handle, means for adjusting said support by turning said links about their fixed pivots and means for retaining said longer arm in adjusted position.

2. In combination with a bed bottom, of an adjustable support for the end section, a pair of links of unequal length at each side of said support, each of said links being pivoted to said support and at fixed points to the bed bottom so that said support is capable of turning about the two center lines of the fixed pivots of said links with said bed bottom, the longer of said links being extended to form an operating handle, bearings carried by said longer link, a springcontrolled spindle slidable in said bearings and having a handle at one end thereof and a nose at the other end thereof and a toothed rack with which said nose is adapted to engage to retain said longer link in adjusted position.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

HEINRICH ACKERMANN.

Vitnesses:

WOLDEMAR HAUPT, HENRY HAsPER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of (Patents, Washington, D. C. 

